French President Emmanuel Macron joined world leaders to pay tribute to former United States President Jimmy Carter, who died Sunday, aged 100. Flags are flying half-mast in the United States, which will hold a national day of mourning for Carter on 9 January, announced President Joe Biden.Carter was “an extraordinary leader, statesman and humanitarian” who “saved, lifted and changed the lives of people all across the globe,” Biden said in a statement released by the White House. HePresident-ele